[RFC][PATCH 4/4] drm/bridge: adv7511: Initialize audio packet on adv7533

[John Stultz]

From: Andy Green <andy.green at linaro.org>

Set the initial audio packet settings to allow the audio
driver to work.

Cc: David Airlie <airlied at linux.ie>
Cc: Archit Taneja <architt at codeaurora.org>
Cc: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Cc: Wolfram Sang <wsa+renesas at sang-engineering.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
Cc: "Ville Syrjälä" <ville.syrjala at linux.intel.com>
Cc: Boris Brezillon <boris.brezillon at free-electrons.com>
Cc: Andy Green <andy at warmcat.com>
Cc: Dave Long <dave.long at linaro.org>
Cc: Guodong Xu <guodong.xu at linaro.org>
Cc: Zhangfei Gao <zhangfei.gao at linaro.org>
Cc: Mark Brown <broonie at kernel.org>
Cc: Lars-Peter Clausen <lars at metafoo.de>
Cc: Jose Abreu <joabreu at synopsys.com>
Cc: dri-devel at lists.freedesktop.org
Signed-off-by: Andy Green <andy.green at linaro.org>
[jstultz: Forward ported to mainline, changed to use register
 names rather then hex values, and removed config values set by
 audio driver.]
Signed-off-by: John Stultz <john.stultz at linaro.org>
---
 drivers/gpu/drm/bridge/adv7511/adv7533.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/gpu/drm/bridge/adv7511/adv7533.c b/drivers/gpu/drm/bridge/adv7511/adv7533.c
index 6798ecf..cced7c9 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7533.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7533.c
@@ -104,6 +104,28 @@ void adv7533_dsi_power_on(struct adv7511 *adv)
 	/* disable test mode */
 	regmap_write(adv->regmap_cec, 0x55, 0x00);
 
+	/* hide Audio infoframe updates */
+	regmap_update_bits(adv->regmap, ADV7511_REG_INFOFRAME_UPDATE,
+				BIT(5), BIT(5));
+	/* enable N/CTS, enable Audio sample packets */
+	regmap_update_bits(adv->regmap, ADV7511_REG_PACKET_ENABLE1,
+				BIT(5), BIT(5));
+	/* enable N/CTS */
+	regmap_update_bits(adv->regmap, ADV7511_REG_PACKET_ENABLE1,
+				BIT(6), BIT(6));
+	/* not copyrighted */
+	regmap_update_bits(adv->regmap, ADV7511_REG_AUDIO_CFG1,
+				BIT(5), BIT(5));
+	/* enable audio infoframes */
+	regmap_update_bits(adv->regmap, ADV7511_REG_PACKET_ENABLE1,
+				BIT(3), BIT(3));
+	/* AV mute disable */
+	regmap_update_bits(adv->regmap, ADV7511_REG_GC(0),
+				BIT(7) | BIT(6), BIT(7));
+	/* use Audio infoframe updated info */
+	regmap_update_bits(adv->regmap, ADV7511_REG_GC(1),
+				BIT(5), 0);
+
 	regmap_register_patch(adv->regmap_cec, adv7533_cec_fixed_registers,
 			      ARRAY_SIZE(adv7533_cec_fixed_registers));
 }
-- 
1.9.1